I wish to announce the release of pycppad
http://www.seanet.com/~bradbell/pycppad/index.xml
Features
Operator overloading is used to store the operation sequence
corresponding to a python algorithm. The operation sequence can be
evaluated to obtain new function values or derivatives of arbitrary
order. In addition, multiple levels of AD are supported. This means
that AD derivatives can be used in the definition of a function which
in true can be differentiated using AD.
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